diff --git a/handler/twitter.go b/handler/twitter.go
index 2571029..302dbdb 100644
--- a/handler/twitter.go
+++ b/handler/twitter.go
@@ -56,7 +56,7 @@ func (t *Twitter) Discord(tweet *twitter.Tweet) error {
 	beaver.Debug(string(data))
 
 	if t.Filter.Webhook == "" {
-		return fmt.Errorf("no webhook for %s", t.Filter)
+		return fmt.Errorf("no webhook for %v", t.Filter)
 	}
 
 	payload := bytes.NewBuffer(data)